Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 35.469548] sshd (223) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:18420' (ECDSA) to the list of known hosts. 2023/05/16 17:48:44 fuzzer started 2023/05/16 17:48:44 dialing manager at localhost:35573 2023/05/16 17:48:44 checking machine... 2023/05/16 17:48:44 checking revisions... [ 36.611928] kmemleak: Automatic memory scanning thread ended 2023/05/16 17:48:45 testing simple program... [ 36.678855] cgroup: Unknown subsys name 'net' [ 36.738646] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 48.782307] audit: type=1400 audit(1684259337.264:6): avc: denied { execmem } for pid=255 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 49.866739] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 49.869234] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 49.870944] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 49.874576] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 49.876258] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 49.878435] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.279333] ------------[ cut here ]------------ [ 50.279968] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.281900] WARNING: CPU: 1 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.282988] Modules linked in: [ 50.283421] CPU: 1 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.288272] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.289521] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.290293] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 50.292556] RSP: 0018:ffff888017d27c00 EFLAGS: 00010282 [ 50.293257] RAX: 0000000000000000 RBX: ffff888016134040 RCX: 0000000000000000 [ 50.294203] RDX: ffff888016b83680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.295101] RBP: ffff888016134054 R08: 0000000000000001 R09: 0000000000000000 [ 50.296030] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.296950] R13: ffffffff84e223a0 R14: ffff888016134048 R15: ffffffff84d73340 [ 50.297877] FS: 00005555574ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.298916] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.299692] CR2: 00007f65d2168000 CR3: 000000000db5e000 CR4: 0000000000350ee0 [ 50.300601] Call Trace: [ 50.300933] [ 50.301270] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.301898] ipv4_frags_init_net+0x269/0x440 [ 50.302655] ops_init+0xbb/0x6b0 [ 50.303275] setup_net+0x3d9/0x990 [ 50.303907] ? down_read_killable+0x1d7/0x4e0 [ 50.304774] ? __pfx_setup_net+0x10/0x10 [ 50.305535] ? copy_net_ns+0x17c/0x770 [ 50.306351] copy_net_ns+0x321/0x770 [ 50.307031] create_new_namespaces+0x3f6/0xb30 [ 50.307916] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.308871] ksys_unshare+0x44d/0x8e0 [ 50.309583] ? __pfx_ksys_unshare+0x10/0x10 [ 50.310424] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.311491] __x64_sys_unshare+0x31/0x40 [ 50.312285] do_syscall_64+0x3f/0x90 [ 50.312942] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.313891] RIP: 0033:0x7fe89fe1a0d7 [ 50.314567] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 50.317191] RSP: 002b:00007fff52d703a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.318272] RAX: ffffffffffffffda RBX: 00007fff52d709e8 RCX: 00007fe89fe1a0d7 [ 50.319196] RDX: 00007fe89fe8441f RSI: 00007fff52d70340 RDI: 0000000040000000 [ 50.320070] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff52d70150 [ 50.320994] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fe89ff2cbf0 [ 50.321908] R13: 00007fff52d70480 R14: 0000000000000000 R15: 00000000000000f8 [ 50.322852] [ 50.323184] irq event stamp: 8491 [ 50.323615] hardirqs last enabled at (8501): [] __up_console_sem+0x78/0x80 [ 50.324675] hardirqs last disabled at (8512): [] __up_console_sem+0x5d/0x80 [ 50.325723] softirqs last enabled at (8042): [] irq_exit_rcu+0x93/0xc0 [ 50.326770] softirqs last disabled at (8001): [] irq_exit_rcu+0x93/0xc0 [ 50.327806] ---[ end trace 0000000000000000 ]--- [ 50.337609] ------------[ cut here ]------------ [ 50.338279] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.340300] WARNING: CPU: 1 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.341559] Modules linked in: [ 50.342099] CPU: 1 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.343507] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.344759] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.345564] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 50.347942] RSP: 0018:ffff888017d27c00 EFLAGS: 00010282 [ 50.348655] RAX: 0000000000000000 RBX: ffff88800e934440 RCX: 0000000000000000 [ 50.349547] RDX: ffff888016b83680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.350456] RBP: ffff88800e934454 R08: 0000000000000001 R09: 0000000000000000 [ 50.351377] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.352256] R13: ffffffff84e223a0 R14: ffff88800e934448 R15: ffffffff84da62e0 [ 50.353179] FS: 00005555574ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.354174] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.354882] CR2: 00007f65d21484d0 CR3: 000000000db5e000 CR4: 0000000000350ee0 [ 50.355760] Call Trace: [ 50.356081] [ 50.356409] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.357011] ipv6_frags_init_net+0x206/0x3c0 [ 50.357591] ops_init+0xbb/0x6b0 [ 50.358028] setup_net+0x3d9/0x990 [ 50.358533] ? down_read_killable+0x1d7/0x4e0 [ 50.359091] ? __pfx_setup_net+0x10/0x10 [ 50.359655] ? copy_net_ns+0x17c/0x770 [ 50.360203] copy_net_ns+0x321/0x770 [ 50.360682] create_new_namespaces+0x3f6/0xb30 [ 50.361289] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.361896] ksys_unshare+0x44d/0x8e0 [ 50.362439] ? __pfx_ksys_unshare+0x10/0x10 [ 50.362990] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.363766] __x64_sys_unshare+0x31/0x40 [ 50.364326] do_syscall_64+0x3f/0x90 [ 50.364805] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.365475] RIP: 0033:0x7fe89fe1a0d7 [ 50.365958] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 50.368166] RSP: 002b:00007fff52d703a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.369082] RAX: ffffffffffffffda RBX: 00007fff52d709e8 RCX: 00007fe89fe1a0d7 [ 50.369965] RDX: 00007fe89fe8441f RSI: 00007fff52d70340 RDI: 0000000040000000 [ 50.370895] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff52d70150 [ 50.371790] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fe89ff2cbf0 [ 50.372674] R13: 00007fff52d70480 R14: 0000000000000000 R15: 00000000000000f8 [ 50.373580] [ 50.373875] irq event stamp: 11917 [ 50.374356] hardirqs last enabled at (11929): [] __up_console_sem+0x78/0x80 [ 50.375411] hardirqs last disabled at (11940): [] __up_console_sem+0x5d/0x80 [ 50.376477] softirqs last enabled at (11826): [] irq_exit_rcu+0x93/0xc0 [ 50.377516] softirqs last disabled at (11821): [] irq_exit_rcu+0x93/0xc0 [ 50.378556] ---[ end trace 0000000000000000 ]--- [ 50.379921] ------------[ cut here ]------------ [ 50.380550] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.382541] WARNING: CPU: 1 PID: 256 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.383641] Modules linked in: [ 50.384052] CPU: 1 PID: 256 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.385227] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.386267] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.386914] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 50.389264] RSP: 0018:ffff888017d27bf0 EFLAGS: 00010286 [ 50.390089] RAX: 0000000000000000 RBX: ffff88800c4fc640 RCX: 0000000000000000 [ 50.391009] RDX: ffff888016b83680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.392076] RBP: ffff88800c4fc654 R08: 0000000000000001 R09: 0000000000000000 [ 50.393003] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.394063] R13: ffffffff84e223a0 R14: ffff88800c4fc648 R15: ffffffff84daf020 [ 50.394982] FS: 00005555574ea400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 50.396171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.396909] CR2: 00007f65d21484d0 CR3: 000000000db5e000 CR4: 0000000000350ee0 [ 50.397976] Call Trace: [ 50.398365] [ 50.398672] nf_ct_net_init+0x224/0x3d0 [ 50.399266] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.400026] ops_init+0xbb/0x6b0 [ 50.400663] setup_net+0x3d9/0x990 [ 50.401308] ? down_read_killable+0x1d7/0x4e0 [ 50.402083] ? __pfx_setup_net+0x10/0x10 [ 50.402802] ? copy_net_ns+0x17c/0x770 [ 50.403516] copy_net_ns+0x321/0x770 [ 50.404205] create_new_namespaces+0x3f6/0xb30 [ 50.404985] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.405868] ksys_unshare+0x44d/0x8e0 [ 50.406593] ? __pfx_ksys_unshare+0x10/0x10 [ 50.407369] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.408398] __x64_sys_unshare+0x31/0x40 [ 50.409104] do_syscall_64+0x3f/0x90 [ 50.409800] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.410714] RIP: 0033:0x7fe89fe1a0d7 [ 50.411380] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 50.414348] RSP: 002b:00007fff52d703a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 50.415633] RAX: ffffffffffffffda RBX: 00007fff52d709e8 RCX: 00007fe89fe1a0d7 [ 50.416827] RDX: 00007fe89fe8441f RSI: 00007fff52d70340 RDI: 0000000040000000 [ 50.418022] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff52d70150 [ 50.419245] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fe89ff2cbf0 [ 50.420441] R13: 00007fff52d70480 R14: 0000000000000000 R15: 00000000000000f8 [ 50.421685] [ 50.422163] irq event stamp: 12699 [ 50.422754] hardirqs last enabled at (12709): [] __up_console_sem+0x78/0x80 [ 50.424200] hardirqs last disabled at (12720): [] __up_console_sem+0x5d/0x80 [ 50.425661] softirqs last enabled at (12186): [] irq_exit_rcu+0x93/0xc0 [ 50.427085] softirqs last disabled at (12175): [] irq_exit_rcu+0x93/0xc0 [ 50.428511] ---[ end trace 0000000000000000 ]--- executing program [ 51.888845] Bluetooth: hci0: command 0x0409 tx timeout [ 53.936979] Bluetooth: hci0: command 0x041b tx timeout executing program [ 55.984285] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.033057] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 17:48:57 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=ffffffff865f7d00 RCX=ffffffff8139f0c9 RDX=ffffffff8542a780 RSI=00000000865f7d00 RDI=0000000000000000 RBP=ffffffffffffffff RSP=ffff88806ce09a28 R8 =0000000000000006 R9 =ffffffff865f7df9 R10=ffffffffffffffff R11=ffff88806ce09ae0 R12=0000000000000000 R13=0000000000000000 R14=ffffffff8542a780 R15=ffff88800f00bd90 RIP=ffffffff814bf3b8 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f65d20372e0 CR3=00000000163ec000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=2038353a38343a37312036312079614d XMM01=5d3132343338322e30352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502031203a555043205d31 XMM07=6e72656b2072656c6c616b7a79732038 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000032 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff888017d275f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000032 R11=0000000000000001 R12=0000000000000032 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00005555574ea400 00000000 00000000 GS =0000 ffff88806cf00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f65d2168000 CR3=000000000db5e000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=0000000000000000000000000000ff00 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000